Hypercoils 7" OBD Coil-Over Spring - 2-1/2" I.D. - 200 lb. 10000201 1406Since 1938

1406Since 1938

Fits Intakes w/ 4150 Flange

Shifter Bushing

091 in Wall

Low tension oil rings make significant increases in horsepower and are for racing only

Hypercoils 7" OBD Coil-Over Spring - 2-1/2" I.D. - 200 lb. 10000201 1406Since 1938Optimum Body Diameter (OBD) Hypercoils feature a unique design concept that adjusts the body diameter of the spring relative to the end coils. The OBD design enables Hyperco to take full advantage of its ultra high tensile material by optimizing the applied stress through adjusting the spring's body diameter. HYPERCOILS because the most important race is the one you are in. Hyperco is a supplier of precision engineered, high performance suspension